Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items [MC1323263]

Microsoft Defender for Office 365: ZAP expands cleanup to Deleted Items [MC1323263]

Message ID: MC1323263 [What and Why:] We are extending Zero-hour Auto Purge (ZAP) in Microsoft Defender for Office 365 to scan and remediate malicious messages located in users’ Deleted Items folders. This enhancement strengthens post-delivery protection by ensuring phishing, spam,…
[Action Required] Update scripts using Get-MailDetailTransportRuleReport and Get-MailTrafficPolicyReport [MC1323250]

[Action Required] Update scripts using Get-MailDetailTransportRuleReport and Get-MailTrafficPolicyReport [MC1323250]

Message ID: MC1323250 [What and Why:] To improve clarity, precision, and performance of transport rule reporting, Microsoft is updating the behavior of two Exchange Online reporting cmdlets. Starting July 30, 2026, Get-MailDetailTransportRuleReport and Get-MailTrafficPolicyReport will return transport rule data only…
(Updated) New Outlook for Windows: LDAP support for S/MIME certificate lookup [MC1310680]

(Updated) New Outlook for Windows: LDAP support for S/MIME certificate lookup [MC1310680]

Message ID: MC1310680 (Updated) Updated May 21, 2026: We have updated the content. Thank you for your patience. [Introduction]New Outlook for Windows now supports Lightweight Directory Access Protocol (LDAP) directories for S/MIME certificate lookup. This enables tenants to configure LDAP directories…
(Updated) Outlook: Support for storing S/MIME certificates in contacts in new Outlook [MC1302908]

(Updated) Outlook: Support for storing S/MIME certificates in contacts in new Outlook [MC1302908]

Message ID: MC1302908 (Updated) Updated May 21, 2026: We have updated the timeline. Thank you for your patience. [Introduction] The new Outlook for Windows now allows users to store S/MIME encryption certificates directly within Contacts. This capability enables users to save…
(Updated) High Volume Email for Microsoft 365 now generally available [MC1243552]

(Updated) High Volume Email for Microsoft 365 now generally available [MC1243552]

Message ID: MC1243552 (Updated) Updated May 20, 2026: We’re reminding you that billing for High Volume Email will begin soon. To avoid service disruption, ensure your billing configuration is set up before billing starts. We have updated the content below.…